Diagnosis of Kaposi sarcoma by a modified fine needle aspiration method combing cell block in Chinese patients with human immunodeficiency virus/acquired immunodeficiency syndrome

To the Editor:Kaposi’s sarcoma(KS),a low-grade vascular tumor,is one of the most common neoplasms reported in patients with acquired immunodeficiency syndrome(AIDS).Based on epidemiological and clinical characteristics,four types of KS have been reported:classic KS,endemic KS(in equatorial Africa),AIDS-associated KS(AIDS-KS),and iatrogenic KS.Clinically,the presentation of KS can be variable with dark or brown macules,plaques,or nodules that may bleed or,ulcerate on the skin and mucous membranes.Besides,the lymph nodes and some visceral organs can also be involved in more advanced stages of the disease.